Adjusting-gear for ordnance.



N'. SJUQUIST. ADJUSTING GEAR FOR ORDNANGE.

APPLICATION FILED JULY 3, 1907. 923,207 Patented June 1, 1909.

2 SHEETS-SHEET 1.

| FLlJ naguomus PEYERS c0, wAsmNcYaN, n. c.

" FFICE.

NILS SJOQUIST, OF STOCKHOLM, SWEDEN.

ADJUSTING-GEAR FOR ORDNANCLE.

had to the drawings accompanying and forming a part hereof.

This invention relates to means for elevating and adjusting laterally of ordnance mounted in carriages.

The o'bjectof the invention isto make it possible to scour, by a rapid-firing machinegun or ordnance, a mark having a considerable extension in any direction whatever.

The invention consists, chiefly, in providing means for independently adjusting the sighting line of'the ordnance so as to bear first on the one and then on the other of the two ends of the mark and in providing means by which the mouth of the barrel can be reciprocated between the two terminal positions aimed at, i. 6., be moved in an oblique direction with relation to the horizontal and vertical plane.

In the drawing, Figure 1 is a side-elevation and partial longitudinal section of an embodiment of my improved arrangement for adjusting the line of sight. Fig. 2 is a rear view of the same arrangement. Fig. 3 is a plan-view thereof. Fig. 4 is a rear view of a part of the arrangement, the parts being shown in the positions for adjusting the gun laterally.

Referring to the drawings, the barrel a of a gun or the like is mounted in the ordinary manner on trunnions Z) in the shanks c of a fork mounted in a cross-piece cZ (Figs. 1 and 2) in such a manner as to be able "to turn about an axis at right angles to the axis of the trunnions, said crosspiece d being hung in the joints 6 so as to allow the barrel to be set to the inclination required. It is easily seen that by this means the barrel may be turned vertically on the trunnions Z) and trained laterally by the fork c'turning about its eometrical axis, so that 'the barrel is capa le of swinging in any direction whatsoever.

Extending from the joints 6 are arms f carrying, at their lower ends, the ordinary training arc g. Extending downwardly from the arms f are projections h carrying the bearing for the elevating worm t cooperating with a Worm-Wheel segment 76 attached to the gun- Specification of Letters Patent.

Application filed July 3, 1907.

Patented June 1, 1909.

Serial No. 382,090.

carriage. The elevating worm can be easily disengaged, by any known arrangement,

from the worm-wheel segment in order to enable the primary or coarser adjustment of the ordnance by hand. Running on the primary training are 9 is a sliding-piece Z adjustable by a screw m or by hand, if the screw is disengaged. The rear part of the sliding-piece Z forms a downwardly directed semicircular arc Z. Mounted on the said arc is a sliding-piece n adapted to be moved along the are by means of a screw 0, or by hand, if the screw is disengaged. As shown in Figs. 2 and 4 the sliding-piece is formed in correspondence to the arc Z, and formed integral with the said sliding-piece is an arc 0 carrying a sliding-piece p or other suitable part adapted to be moved in one or the other direction by means of a screw 9 or by hand if the screw is disengaged. Instead of the are 0 any other suitable guide such as a straight guidebar or the like might be employed. Extending upwardly from thesliding-piece j) is a bearing 9 and j ournaled in the said bearing is a pin 8 firmly connected to the bar rel and so located that the central axis of the pin passes through the center of the arc Z, at right angles to its plane, and through the point of intersection between the axis of the trunnions b and a vertical plane through the axis of the barrel. Thus, the axis of the pin 8 may if desired coincide with the axis of the barrel.

From the aforesaid and the drawing it is easily understood that, if the sliding-piece n is moved along the arc Z from its middle position toward one or the other end of the said are, the are 0 will take up an oblique position in relation to the horizontal plane. Vhen the sliding-piece p is then reciprocated along the are 0, the mouth of the bar rel will obviously swing in an oblique direction corresponding to the angle which the arc 0 forms with the horizontal plane.

The training device is used in the following manner. After the ordnance has been placed in front of the extended mark to be aimed at, the sliding-piece or movable part 1) is placed at the middle of the are 0. The sight-bar of the gun is adjusted for the distance to that end or wing of the mark which requires the highest elevation. The slidingpiece n may take up any position whatsoever in relation to the arc Z, due to the fact that the axis of the pin 8 coincides with the geometrical axis of the arc Z as long as the sliding-piece p is in its central position in relation to the are 0, so that the position. of the barrel is not changed, when the sliding piece it is moved along the are 1, provided the sliding-piece p is in its middle position. The coarser adjustment of the barrel toward the aforesaid end of the mark is performed by hand after disengaging the elevating worm i from the segment 7c and the screw or from the training are so that the barrel may be freely swung vertiaally on its trunnions b, b and laterally by the fork c turning in the crosspiece (5, the adjustment being thereupon made more accurate by means of the elevating worm t and the screw m operating the sliding-piece Z. When the elevating wormi is turned, the whole system (Fig. l) swings about the axis of the joints 0 (only the worm wheel segment is attached to the gun-carriage remains stationary). The sighting device is thereupon adjusted for the other end of the mark. During the sighting toward this end the elevating worm i as well as the sliding-piece Z remain in their adjusted. positions. The sighting is performed by moving the sliding-piece 'l't along the are l and moving the sliding piece 11 along the are 0 so as to bring the sighting line to coincide with the said latter end of the mark. The coarser adjustment is performed by hand, the more accurate adjustment being thereupon performed by means of the screws 0 and g. If the screw (1 is thereupon loosened, While all the other screws hereinbefore mentioned are kept tightened, the sliding-piece or movable part 1) can be reciprocated along the obliquely set are 0 in the manner hereinbefore described, the mouth of the barrel being thus caused to swing in an oblique direction in relation to both the horizontal and the vertical plane, and the obliquely extending mark is thus battered along its whole length.

Having now described my invention, what I claim as new and desire to secure by Lettors Patent is:

1. The combination of a barrel for guns, a carriage supporting the said barrel in such a manner as to allow it to swing vertically and laterally, a guide adjustably supported by the said carriage, said guide being adapted to be set in an oblique position corresponding to the oblique extension of the mark to be tired at, a part movable along the said guide, and a connection between the said movable part and the barrel causing the mouth of the barrel to swing in an oblique direction in relation the horizontal and the vertical plane, when the said part is reciprocated along the guide, substantially as and for the purpose set forth.

The combination of a barrel for guns, a

carriage supporting the said barrel in such a manner as to allow it to swing vertically and laterally, a training are attached to the said carriage, a second training are adjustably supported by the former, a sliding-picce mo able along the said latter training are, a guide carried by the said sliding-piece, said guide being adapted to be set in an oblique position corresponding to the oblique extension of the mark to be tired, a part movable along the said guide, and a con nection between the said movable part and the barrel causing the mouth of the barrel to swing in an oblique direction in relation to the horizontal and the vertical plane, when the said part is rcciprocated along the guide, substantially as and for the purpose set forth.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

NILS SJOQUIST.

Nitnesses KoNnAn DAHLQVIST, AUoUs'r SonENsnN. 

